Britannica AI Icon

Whitfield Diffie

American mathematician

Quick Summary

Whitfield Diffie, an American mathematician, is a key figure in the development of public-key cryptography. In 1976, Diffie and Martin Hellman proposed a revolutionary approach to cryptography that solved the problem of secure key distribution. Their system uses two different keys: one for encryption and another for decryption.

This innovation allows users to publish their encryption key publicly, while keeping their decryption key secret. This means anyone can send a secure message to a user by encrypting it with their public key, but only the intended recipient, with their private decryption key, can read it. This concept is fundamental to modern secure communication and is widely used in applications like cryptocurrency transactions.12

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.